Reuters: Powerful tremors from an Icelandic volcano that has been a menace for thousands of travelers worldwide rocked the countryside on Sunday as eruptions hurled a steady stream of ash into the sky. Ash from the volcano drifted southeast toward Europe, sparing the capital Reykjavik and other more populated centers but forcing farmers and their livestock indoors as a blanket of ash fell on the surrounding areas. Iceland’s Meterological Office said tremors from the volcano had grown …